This paper presents a gain-scheduling wind-turbine control strategy to mitigate the effects of adverse weather conditions on degradation drive-train. By choosing suitable gain according wind class, it is possible establish trade-off between generated energy and drive-train degradation. The dissipated in mechanical transmission used as an indicator modeled flexible shaft using nonlinear dynamics...

Background: Vaccination against COVID-19 is as a key solution to interrupt its spread. This study aimed to describe the vaccination coverage required to stop the spread of COVID-19 in Sri Lanka using a mathematical modeling strategy. Materials & Methods: This longitudinal study used age-stratified and unstratified Susceptible-Infectious-Recovered (SIR) models. Data on the population's age dist...

It is shown in this paper that based on identified discrete-time models a robust digital linear controller can be designed using the pole placement method combined with sensitivity function shaping in the frequency domain. Two different design techniques are presented. The first one is based on the shaping of the sensitivity functions using the fixed parts in the controller and the auxiliary po...

We consider a collision channel, shared by a finite number of self-interested users with heterogenous throughput demands. It is assumed that each user transmits with a fixed probability at each time slot, and the transmission is successful if no other user transmits simultaneously. Each user is interested in adjusting its transmission rate so that its throughput demand is met. When throughput r...

This paper investigates delay-distortion-power trade offs in transmission of quasi-stationary sources over block fading channels by studying encoder and decoder buffering techniques to smooth out the source and channel variations. Four source and channel coding schemes that consider buffer and power constraints are presented to minimize the reconstructed source distortion. The first one is a hi...

Searching for documents by their type or genre is a natural way to enhance the eeectiveness of document retrieval. The layout of a document contains a signiicant amount of information that can be used to classify a document's type in the absence of domain speciic models. A document type or genre can be deened by the user based primarily on layout structure. Our classiication approach is based o...

This paper completely deals with optical signal transmission; with encapsulation entire raw packets are converted as optical signals. Since the usage of internet and intranet are increasing day by day, the demands for bandwidth are also getting increased. In order to meet this demand, DWDM is deployed. DWDM enables service providers to accommodate consumer demand for ever-increasing amounts of ...